KeYmaera X is a theorem prover for specifying and
verifying correctness properties of hybrid systems
(systems that mix discrete and continuous dynamics).
KeYmaera X implements differential dynamic logic
(dL) and provides tactics for a high degree of control over
automated proof search.

Sign in at the top of this page to get started online, or click 'Download' to install locally for improved speed.

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This publicly hosted instance of KeYmaera X offers limited speed and is for demonstration purposes only.
Use a fresh password when creating an account and do not upload anything to this server that is sensitive in nature.